Epithalamus

Epithalamus
Brain: Epithalamus
Epithalamus.png
Mesal aspect of a brain sectioned in the median sagittal plane. Epithalamus labeled in red, by 'habenular commissure', 'pineal body', and 'posterior commissure', with its projection anteriorly consisting stria medullaris
Latin epithalamus
Gray's subject #189 812
NeuroNames hier-275
MeSH Epithalamus
NeuroLex ID birnlex_1710

The epithalamus is a dorsal posterior segment of the diencephalon (a segment in the middle of the brain also containing the hypothalamus and the thalamus) which includes the habenula, the stria medullaris and the pineal body. Its function is the connection between the limbic system to other parts of the brain.

Functions

Some functions of its components include the secretion of melatonin by the pineal gland (involved in circadian rhythms), and regulation of motor pathways and emotions. It is wired with the limbic system and basal ganglia.

Components

The epithalamus comprises the trigonum habenulæ, the pineal body, and the posterior commissure.

External links

v · d · eHuman brain: diencephalon (TA A14.1.08, GA 9.807)
Epithalamus
Surface
Thalamus
Surface
Stria medullaris of thalamus · Thalamic reticular nucleus · Taenia thalami

paired: AN · Ventral (VA/VL, VP/VPM/VPL) · Lateral (LD, LP, Pulvinar nuclei) · Metathalamus (MG, LG)

midline: MD · Intralaminar (Centromedian) · Midline nuclear group · Interthalamic adhesion
Hypothalamus
Surface
Autonomic zones
Anterior (parasympathetic/heat loss) · Posterior (sympathetic/heat conservation)
afferent (SN → Medial forebrain bundle) · efferent (Mammillothalamic fasciculus → AN, Stria terminalis → Amygdala, Dorsal longitudinal fasciculus → SC)
Posterior is diencephalon, but anterior is glandular
Subthalamus
Ventricular system:
Third ventricle

recesses: (Optic recess, Infundibular recess, Suprapineal recess, Pineal recess)

Hypothalamic sulcus · Tela chorioidea of third ventricle

Subfornical organ

Apertures: Interventricular/Monro

Posterior commissure

M: CNS

anat(n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco(m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug(N1A/2AB/C/3/4/7A/B/C/D)

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Look at other dictionaries:

  • Epithalamus — (rot) Der Epithalamus ist ein Teil des Zwischenhirns (Diencephalon). Er liegt dorsal des Thalamus am III. Ventrikel. Zum Epithalamus gehören: Zirbeldrüse (Epiphyse, Corpus pineale, Glandula pinealis) Habenulae (Zügel) Area pretectalis Commissura… …   Deutsch Wikipedia

  • Epithalamus — Épithalamus L épithalamus désigne la portion dorsale du diencéphale formée de l épiphyse, de l habenula et de la strie médullaire. C est une région du cerveau dont les fonctions sont encore mal connues mais qui participe via la sécrétion de… …   Wikipédia en Français

  • EPITHALAMUS — EPITHALAMUS, область, находящаяся в промежуточном мозгу (diencephalon) и образующая заднюю стенку III желудочка; она входит в состав thalamencephalon; к ней принадлежат corpus pineale, область habe nulae и commissura alba posterior, под к рой… …   Большая медицинская энциклопедия

  • Épithalamus — L épithalamus désigne la portion dorsale du diencéphale formée de l épiphyse, de l habenula et de la strie médullaire. C est une région du cerveau dont les fonctions sont encore mal connues mais qui participe via la sécrétion de mélatonine dans l …   Wikipédia en Français

  • epithalamus — A small dorsomedial area of the thalamus corresponding to the habenula and its associated structures, the stria medullaris of the thalamus, pineal gland, and habenular commissure. [epi + thalamus] * * * epi·thal·a·mus …   Medical dictionary

  • Epithalamus — antgumburis statusas T sritis centrinė nervų sistema atitikmenys: lot. Epithalamus ryšiai: platesnis terminas – centrinė nervų sistema siauresnis terminas – kankorėžinė liauka sinonimas – epitalamas …   Paukščių anatomijos terminai

  • Epithalamus — antgumburis statusas T sritis gyvūnų anatomija, gyvūnų morfologija atitikmenys: lot. Epithalamus ryšiai: platesnis terminas – didžiųjų smegenų kojytė siauresnis terminas – antkankorėžinė kišenė siauresnis terminas – gumburinių smegenų pjūviai… …   Veterinarinės anatomijos, histologijos ir embriologijos terminai

  • epithalamus — /ep euh thal euh meuhs/, n., pl. epithalami / muy /. Anat. the dorsal area of the diencephalon containing a habenula and the pineal gland. [1900 05; < NL; see EPI , THALAMUS] * * * …   Universalium

  • epithalamus — noun The dorsal posterior segment of the diencephalon; it includes the habenula, the stria medullaris and the pineal body …   Wiktionary

  • Epithalamus — Epi|tha̱lamus [↑epi... u. ↑Thalamus] m; , ...mi: Bezeichnung für den auf dem Thalamus liegenden Gehirnabschnitt (umfaßt ↑Stria medullaris, ↑Trigonum habenulae, ↑Habenula u. ↑Corpus pineale) …   Das Wörterbuch medizinischer Fachausdrücke

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